Pleuthner, W. A. (1952). More power for your proven plans and projects. Farrar, Straus and Young.
Cita Chicago (17th ed.)Pleuthner, Willard Augustus. More Power for Your Proven Plans and Projects. Farrar, Straus and Young, 1952.
Cita MLA (9th ed.)Pleuthner, Willard Augustus. More Power for Your Proven Plans and Projects. Farrar, Straus and Young, 1952.
Atenció: Aquestes cites poden no estar 100% correctes.